Matthew Collins, the 26th of March 2026
Stores that sell into several countries often end up with one of two compromises. Either every market sees the same storefront, even when it doesn't fit. Or someone duplicates the theme, and six months later the copies have drifted apart.
Shopify's March updates remove most of that trade-off. On the 13th of March 2026, themes gained settings and app embeds per market. On the 16th of March, the checkout and accounts editor gained changes per market on Advanced and Plus. You can now keep one theme and one checkout, and adjust each for the countries or buyers that need something different.
What did Shopify release?
Two changelog entries, three days apart.
The first lets you customise theme settings and app embeds per market. In the Online Store Editor, you can override colours, typography, app embeds, custom CSS and more for a specific market or Rollout. It's for plans that include Market customisations for Themes.
The second extends the same idea to checkout and customer accounts by market. Merchants on Advanced and Plus can select a market in the checkout and accounts editor and change settings, branding and blocks for that market only. Shopify names specific countries and B2B buyers as examples.
The principle is the same in both. One global setup, with targeted overrides where a market needs them.
Where does this actually help?
On the cross-border stores we work on, a few patterns come up again and again.
- App embeds that only apply in one place. A payment messaging widget, a local reviews badge or a delivery estimate tool that only makes sense in one country.
- Trust and compliance details. Delivery promises, returns wording or payment reassurance that differs by market.
- A trade checkout that looks like a trade checkout. B2B buyers can see blocks and branding suited to account ordering rather than a retail promotion.
- Seasonal differences. A campaign colour or banner treatment for one market while others stay as they are.
Wholesale is the one we'd look at first. Trade buyers reorder often, and a checkout full of retail messaging slows them down. Shopify's native B2B support in Horizon themes already covers volume pricing and quick order lists on the storefront. Market-level checkout changes carry that through to the last step.
When should you not customise by market?
Every override is something to maintain. The feature is useful precisely because it's targeted. Used everywhere, it rebuilds the drift problem inside one theme.
A few rules we follow.
- Start from the global design. Only override where a market has a clear reason to differ.
- Keep a written list of overrides by market. When you change the global theme, you'll know what to check.
- Avoid overriding custom CSS for small tweaks. It's the hardest override to spot later.
- Test each market as a buyer from that market. What you see in the editor isn't the whole journey.
If your markets differ mainly in language, that's a translation question rather than a design one. We cover it in our guide to running a multilingual Shopify store from Belgium.
How this fits with tax and VAT at checkout
Branding is only part of a market-specific checkout. The rules behind it matter too.
For B2B buyers in Europe, Shopify added VAT number validation at checkout in February. Valid numbers can apply the reverse charge exemption on eligible orders. If you're giving trade buyers their own checkout experience, that setting belongs in the same plan.
Product data plays a part as well. Duties and customs depend on the right classification for each destination. That's why country-specific HS codes are worth setting up before you expand.
Planning a market-by-market rollout
Changes like these are easier to launch in stages. Pick one market with a clear need, make the overrides, and check orders and conversion before you touch the next one.
Shopify's changelog mentions Rollouts alongside markets in the theme editor. If you want to schedule a market change for a launch date rather than publish it live, that's worth watching.
This is also where a build decision and an operations decision meet. The Shopify stores we design and build for cross-border sellers start with the markets the business actually trades in. Bosie needed shipping for the UK and the US that didn't create friction at checkout. The same thinking now applies to branding and content, market by market.
Where parallel helps
We design and build Shopify and Shopify Plus stores for UK and European businesses that sell across borders. That includes the theme, the checkout and the market setup behind them. See how we approach Shopify design and build, and our work with businesses selling across Europe.
If your store sells into several markets with one global look, or several drifting themes, send us a brief. We'll tell you where market-level changes would pay off and where one design is still the right answer.